CVE-2026-103319 — MEDIUM (5.3)

Vulnerability Description

The OPay Payment Gateway for WooCommerce WordPress plugin through 2.5.5 does not properly verify that payment notifications originate from the payment provider, as the secret used to validate their signature is empty by default, allowing unauthenticated attackers to forge a valid notification and mark arbitrary orders as paid, cancelled or failed.

CVSS Score

5.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

LOW

Availability

NONE

Related Weaknesses (CWE)

CWE-287

References

https://wpscan.com/vulnerability/c07f15a0-3c15-429f-bcde-1511ad658c6c/

FAQ

What is CVE-2026-103319?

CVE-2026-103319 is a vulnerability with a CVSS score of 5.3 (MEDIUM). The OPay Payment Gateway for WooCommerce WordPress plugin through 2.5.5 does not properly verify that payment notifications originate from the payment provider, as the secret used to validate their si...

How severe is CVE-2026-103319?

CVE-2026-103319 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-103319?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.